package com.zyg.order.config;

import feign.RequestInterceptor;
import feign.RequestTemplate;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;

@Configuration
public class GuliFeignConfig {

    @Bean("requestInterceptor")
    public RequestInterceptor requestInterceptor() {
        return new RequestInterceptor() {
            @Override
            public void apply(RequestTemplate template) {
                //1、拿到刚进来的这个老请求
                ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();

                if (attributes != null) {

                    System.out.println("RequestInterceptor线程。。。" + Thread.currentThread().getId());
                    HttpServletRequest request = attributes.getRequest();//老请求
                    if (request != null) {
                        //同步请求头信息，cookie
                        template.header("Cookie", request.getHeader("Cookie"));
                        //给新请求同步老请求的cookie
                        System.out.println("feign远程之前先这里 apply 方法");
                    }
                }
            }
        };
    }
}
